Type-writing machine.



0. WOODWARD.

TYPE WRITING MAGHINE. APPLICATION TILED JAN. 31, 1906.

900,461. I Patented Oct. 6,1908.

3 SHEETS-SHEET 1.

\A/ITNEEEEIEIQ I v NTEIR= 1-!!5 ATTEIRNEY 0. WOODWARD. TYPE WRITING MACHINE. A'PPLIOATIQN IILED'JAN. 31, 1906.

Patented Oct. 6, 1908.

SSHEETfi-SHEHT 3.

TTEIRNEY FEE ' i1 1N ITED STATES PATENT OFF-ICE. 'osoAR WOODWARD, on NEW YORK, N. Y., ASSIGNOR TODENSMORE TYPEWR TER COMPANY, F SYRACUSE, NEW )YORK, A oonronarlon'or NEW YORK.

TYPE-WRITING- MACHINE.

No. 900,461. Specificatio'npf Letters Patent. Patented Oct. 6, 1908.

Application filed January 31, 1906. Serial No. 298,794. To -allivho'm, it may concern: the top plate, each being disposed radially Be 1t. known that -I, OSCAR Woonwnnn, of the printing point. citizen of the United- States, andres'ident of Pivoted at 11' in each hanger is a type bar the borough of Manhattan, city of New 12 which'is actuated in a known manner by I 3 York, in the county of New York and State its associate key lev. '4, through the link 7 of New York, have invented certain new and and sub-lever 8, and is caused to cooperate useful Improvements in Type-Writing Mawith the under side of a cylindrical platen chines, of which the followingis a specifical3- pivotally mounted at 14 in a platen tion. p frame 15, said platen frame being provided 9 My invention relates more especially to at its front with a roller 16 which is guided line locks for. typewriting machines and has and supported by a shiftable track way 17. for its main object to provide improved de- At its rear the laten frame iscOnnected b vices of the classspecified. 4 links 18 (one 0 which is shown) with a car- To the above and other'ends my invention riage truck '19, the latter being provided consists in the features of construction,'comwith rollers 20 which cooperate with oppebinations of devices and arrangements of sitelydisp'osed gr00ves21 in the sides of a parts hereinafter fully described and par stationary trough-like track way 22 supticula-rlypointed out in the claims. ported by brackets 22 'on the top plate. I have illustrated my invention as applied ounted on the carriage truck 19 is a car- 20, to a bottom-strike machine generally reriage feed rack 23 which normally meshes seIn-leling one style of the Densmore-typewith a feed pinion 24 fixed to the forward writer, but it is to be understood that said end of a shaft 25,.s'aid shaft turning in fixed invention may be adapted to other formsof bearings. 26. Operatively connected with writing machines. the rear end of the shaft 25 is an escapement 25 In the accompanying drawings, Figure 1' wheel 27 and adapted to cooperate with the is. a vertical longitudinal sectional view, teeth of said escapement wheel are carriage taken about centrally, of so much of a typefeed dogs 28 mounted at the top of the verwriting machine as is necessary. to illustrate tically disposed arm 29 of a dog carrier 30 my invention. Fig. 2 is a fragmentary rearwhich is pivoted at 31 and is provided with soelevation of the machine, part of the base a forwardly extending arm 32. A link 33 being shown sectioned away and other parts" as its upper end pivotally connected with being omitted for the sake of clearness. said forwardly extending arm 32, the lower 35 aptpear when 1n locking position. Fig. leis tending rearwardly from a universal bar 35. a ragmentaryrear'elevation of parts of the The universal bar is disposed transversely line locking mechanism as they appear after above the key levers and'is provided at its having been unlocked from looking position. ends with rearwardly' extending arms 36, Fig. 5 i's a fragmentary side elevation of the rear endswhereof are fixed to a trans- 40 parts of the line locking mechanism posiverse rock shaft 37, which is pivoted at its 9.5 tioned as in Fig. 3. Fig. 6 is an enlarged ends in thesides of the base. The arms 34 detail View, partly in section, of one of the are also fixed to said roc'k shaft 37 and com-- parts of the line lock mechanism and its prise,.with the sidearms 36, the rock shaft 1 armg, 37 and the universal bar 35, a universal, bar

45 Referring now to the drawingsand more; frame.

particularly to Figs. 1 and 2, the mam frame Suitably secured, as by solderin to each ofthe machine is shown as comprisinga base keyleyer 4, is a member 38, sai member .portioal and corner posts 2 which latter compr sing an upwardly and rearwardly sustain a top plate 3. Key levers 4 are pivextendinghook portion 39 which overhangs 50 oted at 5 in the rear ofthe base, each key the universal bar 35 and a por'tion40 which .19

lever being provided with a restoring spring extends below the associate key lever and is 6. Each key lever isconnect'ed by a link 7 notched or cut away to provide a vertical with a sub-lever 8 which is pivoted at 9 in a contact edge or stop 41 and a horizontal contype bar hanger 10, said hanger being one of tact edge 41 for purposes presently to be det a series arranged substantially in a circle on scribed. When the key levers are depressed 1-1 to actuate the type bars, the associate hook.

portions 39 coact with the universal bar 35 to swingthe latter downwardly about its pivots, thereby causing the feed dogs 28 to coiiperate with the escapement wheel 27 in a known manner, so that as said universal bar returns to normal position the carriage, comprising the platen frame and carriage truck 19, may be drawn one space leftward across the top plate under the influence of a carriage spring drum42 with which a pin 43 extending downwardly from the carriage truck is connected by a band or strap 44. I

vhave shown and thus far described certain rack bar may be provided with the usual scale corresponding with the usual carriage scale. Mounted to slide lengthwise of the rack bar 47 is a contact or line stop 48 which comprises a body portion 49 partially surrounding the rack bar and a detent member 50, said detent member being pivoted at 51 to the body portion and being provided at one end with a locking tooth 52, adapted to engage the teeth of the rack bar, and at its other end with a finger portion 53. A coiled spring 54 is seated in a depression formed in the top of the body portion 49 and presses constantly against the under side of the detent member 50 at the side of the pivot 51 opposite from that of the tooth 52. Said spring 54 tends to maintain said tooth 52 in enga ement with the teeth of .the rack 47, there y locking the contact or line stop in place. When it is desired to adjust the latter it is only necessary to depress the finger piece 53, thereby pressing the spring 54 and raising. the tooth 52 out of engagement with the teeth of the rack bar 47, whereupon the line stop 48 may be slid along the rack bar to the desired osition and locked thereat by releasing the nger piece 53.

Loosely pivoted to the line stop at 51 is a depending bell trip 55 which lies against the rear face of the body portion 49 of the line stop and is provided at its lower end with a contact portion 56 which is twisted rearwardly at right angles to the main art of the trip. A pin 57 projects rearward y from the body portion 49 of the line stop'in position to engage with the bell trip. A leverlike bell hammer 58'is pivoted at 59 to the rear of the track way 22, one arm of the bell hammer pro'ecting upwardly in position to cotiperate with the bell trip and the lower arm of said hammer being provided with a head 60 which is adapted to coiiperate with a bell 61 secured by a screw 62 to a lug 63 depending from'the top plate of the machine. The head 60 is normally maintained out of contact with the hell by a spring rest 64 secured by a screw 65 to the top plate of the machine. The bottom of the body portion 49 of the line stop is cut away to provide a vertical contact. face 66 and an upwardly sloping beveled face 67. The margin stop 68 is of similar construction to the line stop above described and comprises a body portion 69 formed with a contact face 70, oppositely disposed to the contact face 66, and with a beveled face 71. Pivoted at 72 to the body of the margin stop is a detent member 73 comprising a locking tooth 74 and a finger portion 75, said locking tooth being maintained in engagement with the rack bar 47 by a coiled spring 76 and said margin stop being adapted to be adjusted in a manner similar to that described in connection with the line stop 48.

The mechanism coiiperating with the line and margin stops to arrest the carriage and with the former of said stops to lock the key levers against depression willnow be described. A bar-like membr 7 7 is arranged upon and longitudinally of the rear wall of the track way 22, said member, as shown in Figs. 2, 3 and 4 being provided with a slot 7 8' at its outer end which receives the shank of a headed screw 79, the latter engaging a threaded opening in .the rear wall of the track way 22. The inner or, as viewed from the rear of the machine, left-hand portion of the member or bar 77 is guided and sup-. ported in a guide-block 80 which is provided with a slot 81 (Figs. 4 and 6') through which the bar 77 passes, said, ide block being secured to the rear wall 0 the track way 22 by screws 82. Considering the bar 77 as viewed from the rear, it is cut away just to the right of the guide block 80 to provide a vertical contact ed e 83, and to the left of the guide block said bar 77 is provided with an upwardly extendin edges of'which are vertical and are ada ted to be engaged by the contact face 66 'o the line stop and the contact face of the margin stop. To the right of the guide block the bar 77 is provided with a depending limiting stop 85. i To the right of the stop 85 a pin 86 projects rearward y from the face of the bar 77, said pin projecting through an elongated slot 87 formed in and near the top of an upright arm 88 of a bell crank lever 89. The arm 88 is off-set rearwardly to enable the bell crank lever 89 to be pivoted at 90 to the top plate. The horizontally disposed arm 91 of said lever is pivotally connected at 92 with the upper end of a link 93. The link 93 extends downwardly and passes freely, through an opening 94 in an angular lip 95 projectarm 84, the side i ing rearwardlyfrom a locking member or bar 96. The lower end of the link .93 is threaded and receiyes a nut 97 which is adapted to contact with the under side of the or flange 95 of the locking bar 96. By

li adziusting the nut 97 the locking bar may be I timed or caused to coiiperate properly with the key levers. Said locking bar extends from side to. side a 7 key levers and is provided'at its ends with pivotal portions 98 which are journaled in rackets 99 secured by screws 100 to the sides 26 wherein it will be noted, said bar inclines,

-bar (Fig. 2)

of the base. A wire spring 101 is coiled upon one of the locking bar and the otherv endjin the neigh- Said spring: tends nortowards the rear of the machineso that -normally its upper edge will not interfere with the operation of the printing key levers 4. I he effect of gravity and of the spring 101, whichla'ttenacts on the bell cranklever 89 through the bar 96 "and link 93,- tend to maintain said bell crank lever in the position indicated in Fi and slot connection, tends to malntain said bar-in the longitudinal position indicated in said Fig. 2 wherein, itw'ill-be noted, the; bar

. maintained with its upper edge in contact.

is at the extreme of its leftward movement,

viewed from the rear, and with the vertical edge 83 engaging-the guide block 80 and the right-hand end of the slot 7 8. Contacting with during printing operations until the contact portion '56 of the bell trip en ages the up- Wardly projecting arm of the ell hammer 58. The bell trip is prevented from yielding to the bell hammer by the pin 57. so that a further movement ofthe carriage leftward ,will raise the hammer portion until. the carriage has moved far enough to permit the upwardly projecting arm of-the bell hammer to esca e from the contact portion of thebell trip, w ereupon the head 60 will fall against the bell of 1 the approach to the end of the urther line. leftward movement of the carriage will'bring thecontact edge 66 of'theline stolp48 against the arm 84 of the slid-- abcle ba'r77and will move said bar longitudinally rightward,,as;viewed from the rear.

his movement of .thebar will be communias through the bell crank so to'the link 93 to raisethe latter, said link giving areof the machine beneath the.

pivotal portions of the locking and has one end fastened in the ing bar is in contact with-the pression, as the slightest movement will g. 2. The bell crank lever, act I ing on the slidable bar 77 through the pin so a restoring spring 108, said spring tending to maintain said lever in'the position lndi- 61 ringing the latter and givingward "it will act through slide bar 77 to swing the latter about the tary movement to the locking bar 96 and swinging the latter to the locking position indicated in Fig. 5, wherein it will be observed that said-locking bar is directly beneath the edge 41 of the hook member 38.-

locking bar is prevented by the vertical edge or'stop 41; of said hook member 38, with; which edge said locking bar contacts as soon as it reaches the vertical or locking position-- When the locking bar or member 96 is inthis position the slide bar or member 77 is in the positionindicatedin Fig. 3, wherein it will be observed that the arm 84' of the slidguide block which serves also as a sto'p'to limit the moveinent of'said ba-r 77. With the parts in the positions just described it will be understood that the key levers tare-locked against debringthe contact edgesetl on said key levers into contact with the locking bar 95. It will also be understood that the carriage is locked against further movement in-letter' space direction, through the engagement of the line hasnow reached the limit of its travel in letter space direction. a e i *In order that additional ch aracters may be written if. desired at the end of the line, after the line lock has been brought to operative position, I provide unlockingmechanism which will now be described. A lug 102 integral with the slide bar 77 is dependent from said. slide bar between the bearing sc'rew'79 and the pin 86. A vertically disposed link 103 has its upper end pivotally connected to said lug at 104, the lower endof said link being connected-at 105 to a key lever 106 pivoted onthe .fulcrum'rod 5 of the character key levers and extending fore and aft of the machine. The key lever 106 is provided at its forward end with a key button 107. The lever 106 is provided with cated in Figs. 1 and 2, and said spring further acting on the slidable bar 77 through the link 103 to maintain saidbar in'the po- I sitions shownin Fig. 2 and in full lines in 'Fig. 3, with its upper edge in contact with the top of the slot in the guide block 80. When it is desired to release the printing key. levers and the carriage from the line lock mechanism the unlocking or releasing key lever 106 is depressed and as it moves downthe link 103 on the screw 79 as a pivot downwardly from the position indicated in full lines .in-Figf 3 to 12 l lug with the top plate 3. When in the dotted lineposition, it will-be noted that the 130 Overthrow or an excessive movement-of the 7 stop 48 with the sliding bar 77, which bar J slide bar 77 has been'swung down outof ten-- gagement with the line stop- 18. As" soonas this disengagement occurs the spring 101,

acting, throughthe locking bar 96, link .93, 5 bell crank 89 and pin8\6, upon the slide bar 77, will swing the latter inwardly or towards the left, viewedfrom the rear, to the position indicated inFig. 4, in which it will be noted the top of the arm 84 lies up againstthe bottom of the line stop 48, but is not in position to prevent further movement of said line stop in letter space direction. 'Ihelocking bar 95 has, by this operation, been swungrear'wardly by its spring10l far enough to their associate type bars tofcoiiperate with the platen and the carriage willmove a letter space distance at each operat on ofone of under the influence'of the springs 101 and ward the top of the arm 84 will ride upward (said key'levers. its the carriage moves left- 108'until the slid-ableaird rotary bar 77 has along the inclined edge 67- of; the-line stopmovement. of thebar 7 7 without disturbing the locking bar 96 and its connectio 'ns. After the 'line stop has passed the arm- 84 the bar 77 will be swung up under the influ-.

ence' of the spring 108 to normal position; The next operation that takes plaoe during the return'movement ofthe carriage is the engagement of the bell trip with the hammer lever 58, said bell trip being swung about its pivot 51' by the-lever 58Xvithoutsaid lever being affected. Thereafter the contact face 70 of the margin stop 58will,

engage the arm- 84 and as the edge 83 of the bar .77 is now in contact with the guide block 80, said arm 84 Will not yield and the carriage will be arrested in proper positionto begin a newline cit-writing.

it'should be'desired to write within the zmargin, 'thekey-lever 106 may be depressed to draw down the lever 77 until. the arm 84 disengages from the margin stop 68, whereupon the earriagei may be moved still further rightward in order-towrite within the margin. After such operation the bar 77 will be automatically depressed by the cooperation between the inclined face 71 of the nrargin stop with the arm 84 during the movement of the carriage in printing direction. I i

It will be seen thatI provide-a line lock permit the; o eration of the key levers 4' so" that said key' evers'may be operated to cause usual vmanneii. fDuring this'returnfn'iovemechanism thatcomprisesfew parts and which 1s simple in'operation; that said line lock inechanism serves to lock the keys against depression and the carriage against movement-in letter space direction; that I further provide means for unlookin said line locking mechanism to permit add tional characters to be written; that I also provide means for arresting the carriage as it is returned from left to right in order to define the left-hand margin; and that I further provide means for permitting the further rightward movement of said carriage to enable writing to be done within the margin.

Various changesmay bemade in the construction and arrangements of the parts hereinbefore described 'without departing from the spirit andseope of my invention. 1

What I- claim'as new and desire to secure by Letters Patent, 'is

1. In a typewriti'ng machine, the combination of type bars; key levers therefor; a carriage; step-by-step feeding devices therefor; a line stop oirsaid carriage; a slidable bar cooperative with said l ne stop; a plurahty of guides for said bar, said guides being fixed on the frame of the machine; a locking bar lying beneaththe key levers and connected with said slidablebar, said locking bar being normally inoperative; and'means for maintaining-said slidable bar in position to cooperate-withsaid line stop and for releasing said .slidable bar from engagement with said line stop, said means including a 'spring-pressed key lever and a link" con e ected at one -end directly to'said springpressed key lever and connected at the other end directlyto' said slidable. bar. v

2. In a typewriting machine, the'combina- 't-ionj of type bars; key levers"for-operating said type bars; a carriage; step-by-step.feed-- ingdevices for said carriage; a universal bar operated by said key. levers and connected wi'th the carriage feeding devices; a rack bar on said carriage; a line'stop adjustable on said rack bar; a baranounted to slide on the frame Of-the'machine; a bell crank lever pivoted to the frame and connected 'to' said slidablc bar; a link; a pivotedllockingbar lying-beneath the key levers and connected said link with said b e ll crank lever; a spring-acting on said locking bar and tending to maiiit-ain the latter'inoperative and to press saidlslidable-ba'r a direction opposite to that in which the carriage is fed step-by-s'tep, saidflline stop being cooperativewith said slidable bar to arrest the carriage and to. operate said locking bar; and

means for releasing said 'slidablc bar, said means comprlsing a releasing key lever and a link directlyconnected both to said slidable bar'and-to said releasing key lever.

3. In a typewriting machine, the combina tion of a'carriage; type bars; key levers for operating said type bars; a line stop adjust.

' bar operative by said slide on the frame of the mach able on the carriage a bell trip said line stop; a bell h machine frame and operable by said bell trlp; a slidable bar on the machine frame operable by said line stop; a pair of fixed guides cooperative with said slidable bar, one of said guides serving also as a pivot for said bar; a pivoted locking bar disposed transversely of said key levers; connections between said slidable bar and said pivoted locking bar for operating the latter to lock the key levers, said'slidable bar also. serving as a stop cooperating with said line stop to arrest the movement of the carriage in the print ng direction; and key operated means for giving a rotary movement to said slidable b locking bar, one of said with said slidable bar to guide it durlng both its slidable and rotary movements. .4. In a typewriting machine, the combina: tion of type bars; 'key levers for operating said type bars; a carriage; step-by-step feeding 'devices'for said carriage; a universal ammerpivoted on the guides cooperating rack bar on said carriage; a line able on said rack bar; a marg ustable on said rack bar; a bar stop adjust- 'nstop admounted to ine;-a pivoted locking bar lying beneath said key levers; connections comprising a bell crank lever and a link between said slidable bar and said lockin bar; a spring tending to maintain said locking barinoperative. and to press said slidable bar in a direction opposite to that in which the carriage is fed stepby-step, said line stop being cooperative with said slidable bar to operate said looking bar and to arrest the carriage from movement in printing direction and said margin stop co-aoting with the carriage on its return movement; and means for moving said slidable bar to inoperative position, said means including a spring-pressed key lever and a .linkconnected directly both to said spring-pressed key lever and to said slidable bar.

5. In a typewriting machine, the combination of type bars; key levers for operating said type bars; a carriage; step-by-step feeding devices for said carnage; a universal key levers and connecte rack bar on said carriage; a line stop adjustable on said rack bar; a margin stop ad 7 justable on said rack bar; a 'sllidable bar mounted on the frame of the machine, said slidable bar being also capable of rotary movement; a locking bar pivoted to, the frame of the machine vers; connections between said locking bar and said slidable bar; means tending to maintain said locking bar inoperative and to pivoted to I ar to release said carriage fromsaid ar operated by said key levers and' con 'neoted With the carriage feeding devices; a

said bar to arrest with the carriage feeding devices; a,

beneath said key le-.

,justable on said rack bar;

' ver'sal bar,

press said slidable bar in a direction opposite said slidable bar to operate said locking'bar and also to arrest the carriage; and key operated means fonvgiving rotary movement to said slidable bar tonnlock said locking e and to free the carriage for further space movements, said slidable bar being (:0- active with said margin stop to arrest the carriage on its return movement, said key operated means including a spring-pressed key lever and a link connected directly both to said spring-pressed slidable bar. v p I 6. In a typewriting machine, the combination of type'bars; key levers for operating said type bars, a carriage; step-by-step feeding devices for said carriage; a universal bar operative by said key levers and connected with the carriage feeding devices; a

rack bar on-said carnage; a line stop adjustable on said rack'bar; a margin stop ada slidable bar mounted on the frame of the machine, said slidable bar being also, capable of rotary movement; a locking bar pivoted to the vers; connections between said locking bar and said slidable bar; means tending to maintainsaid locking bar inoperative and to press said slidable bar in a direction opposite to that in which the carriage is fed step-by-step, said line stop belng coiiperatlve with said slidable bar to operate said lockmg bar and .val'so to arrest the carriage; and key operate jmeans for giving rotary to said bar and to free the carnage for further letter space movements, said slidable bar being 00- active with said margin stop to arrest the carriage on its return movement and being further operable at such time by said key operated 'means to free the carriage for wr1ting within the margin, said key operated means including a spring-pressed key lever and a link connected directly both to said spring-pressed key lever 7. In a typewriting machine, the combina- I I 115 tion of a carriage; carriage feeding devices including a universal bar; type bars; key

type bars arranged levers for operating said beneath said universal bar; hooks secured on said key levers and operative on said u n1- said hooks being provided with stop portions extending below sa1d key levers; a member for locking said key lev rs against depression; and means controlled by bar tter key lever and to said movementslidable bar to unlock said locking frame of the machine beneath said key leand to said slidable said carriage for operating said member, the

stop portions on said hooks 'coiiperating with said member to arrest it after it has I I reached locking position. V g 8. In a typewrlting machine-the combination of a carriage, a fixed track-way on which said carriage moves, type bars, key levers therefor, a contact on the carriage, an

line locking mechanism for said key levers operative by said contact and comprising a bar slidably mounted on said track-way, a bearing block secured'to said track-way and serving to guideand support said bar near one end and also to limit its longitudinal movement in one direction, a locking bar dis ative by said. contact and comprising a slidable and rotary-bar, a locking bar cooperating with the key levers and connected with said sl dable and rotary bar, and unlocking mechanism for said key levers comprising a key lever and a link directly connected with said last mentioned key lever and with said slidable and rotary bar, said last mentioned key lever being operative to communicate rotary movement to the slidable and rotary bar.

10. In a typewriting machine, the combination of a carriage, type bars, key levers therefor, a contact on the carriage, a slidable and. rotary bar on the machine frame movable in a longitudinal direction by said contact, a locking bar disposed transversely of said key levers, a bell crank pivotally connected with said slidable bar, a link directly connected with said bell crank and with said locking bar, said bell crank and link operating said locking bar to lock the key levers, and unlocking mechanism for said key levers comprising a key lever and a link directly connected with said last named key lever and with saidslidable and rotary bar, said last named key lever being operative to co1nmnnicate rotary movement to the slidable and rotary bar.

Signed at t of New York, in the county of New York, and State of New York, this 30th day of January, A. D. 1906.

OSCAR \VOODWARD.

\Vitnesses E. M. lVELns,

M. F. HANNwnnnR.

he borough of Manhattan, city 

